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Merge pull request #87 from JamesWrigley/v1.89.4-update
Update wrapper for v1.89.4
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,152 @@ | ||
| # This is a port of a C++ stress-test of the renderer: https://github.com/ocornut/imgui/issues/2591#issuecomment-496954460 | ||
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| # It basically draws a bunch of squares and text to force ImGui to create lots of | ||
| # vertices, which should result in visual artifacts unless vertex offsets are | ||
| # enabled (or ImGui was built with 32-bit indices). | ||
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| using CImGui | ||
| using CImGui.ImGuiGLFWBackend | ||
| using CImGui.ImGuiGLFWBackend.LibCImGui | ||
| using CImGui.ImGuiGLFWBackend.LibGLFW | ||
| using CImGui.ImGuiOpenGLBackend | ||
| using CImGui.ImGuiOpenGLBackend.ModernGL | ||
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| # create contexts | ||
| imgui_ctx = CImGui.CreateContext() | ||
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| window_ctx = ImGuiGLFWBackend.create_context() | ||
| window = ImGuiGLFWBackend.get_window(window_ctx) | ||
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| gl_ctx = ImGuiOpenGLBackend.create_context() | ||
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| # enable docking and multi-viewport | ||
| io = CImGui.GetIO() | ||
| io.ConfigFlags = unsafe_load(io.ConfigFlags) | ImGuiConfigFlags_DockingEnable | ||
| io.ConfigFlags = unsafe_load(io.ConfigFlags) | ImGuiConfigFlags_ViewportsEnable | ||
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| # set style | ||
| CImGui.StyleColorsDark() | ||
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| # init | ||
| ImGuiGLFWBackend.init(window_ctx) | ||
| ImGuiOpenGLBackend.init(gl_ctx) | ||
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| mutable struct GuiState | ||
| vtx_count::Cint | ||
| vtx_count2::Cint | ||
| end | ||
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| function generate_widget_properties(n) | ||
| off_x = (n % 100) * 3f0 | ||
| off_y = (n % 100) * 1f0 | ||
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| color::ImU32 = ((n * 17) & 255) | ||
| color |= ((n * 59) & 255) << 8 | ||
| color |= ((n * 83) & 255) << 16 | ||
| color |= 255 << 24 | ||
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| off_x, off_y, color | ||
| end | ||
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| function gui(state) | ||
| if CImGui.Begin("Dear ImGui Backend Checker") | ||
| version = unsafe_string(CImGui.GetVersion()) | ||
| io_ref = unsafe_load(io) | ||
| platform = unsafe_string(io_ref.BackendPlatformName) | ||
| renderer = unsafe_string(io_ref.BackendRendererName) | ||
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| CImGui.Text("Dear ImGui $(version) Backend Checker") | ||
| CImGui.Text("Platform: $(platform)") | ||
| CImGui.Text("Renderer: $(renderer)") | ||
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| CImGui.Separator() | ||
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| if CImGui.TreeNode("0001: Renderer: Large Mesh Support") | ||
| drawlist_ptr = CImGui.GetWindowDrawList() | ||
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| let vtx_count = Ref(state.vtx_count) | ||
| CImGui.SliderInt("VtxCount##1", vtx_count, 0, 100_000) | ||
| pos = CImGui.GetCursorScreenPos() | ||
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| for n = 0:(vtx_count[] ÷ 4 - 1) | ||
| off_x, off_y, color = generate_widget_properties(n) | ||
| CImGui.AddRectFilled(drawlist_ptr, | ||
| ImVec2(pos.x + off_x, pos.y + off_y), | ||
| ImVec2(pos.x + off_x + 50, pos.y + off_y + 50), | ||
| color) | ||
| end | ||
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| CImGui.Dummy(350, 150) | ||
| drawlist = unsafe_load(drawlist_ptr) | ||
| CImGui.Text("VtxBuffer.Size = $(drawlist.VtxBuffer.Size)") | ||
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| state.vtx_count = vtx_count[] | ||
| end | ||
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| let vtx_count2 = Ref(state.vtx_count2) | ||
| CImGui.SliderInt("VtxCount##2", vtx_count2, 0, 100_000) | ||
| pos = CImGui.GetCursorScreenPos() | ||
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| for n = 0:(vtx_count2[] ÷ 40 - 1) | ||
| off_x, off_y, color = generate_widget_properties(n) | ||
| CImGui.AddText(drawlist_ptr, | ||
| ImVec2(pos.x + off_x, pos.y + off_y), | ||
| color, "ABCDEFGHIJ") | ||
| end | ||
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| CImGui.Dummy(350, 120) | ||
| drawlist = unsafe_load(drawlist_ptr) | ||
| CImGui.Text("VtxBuffer.Size = $(drawlist.VtxBuffer.Size)") | ||
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| state.vtx_count2 = vtx_count2[] | ||
| end | ||
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| CImGui.TreePop() | ||
| end | ||
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| CImGui.End() | ||
| end | ||
| end | ||
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| try | ||
| state = GuiState(60_000, 60_000) | ||
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| while glfwWindowShouldClose(window) == GLFW_FALSE | ||
| glfwPollEvents() | ||
| # new frame | ||
| ImGuiOpenGLBackend.new_frame(gl_ctx) | ||
| ImGuiGLFWBackend.new_frame(window_ctx) | ||
| CImGui.NewFrame() | ||
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| # UIs | ||
| gui(state) | ||
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| # rendering | ||
| CImGui.Render() | ||
| glfwMakeContextCurrent(window) | ||
| w_ref, h_ref = Ref{Cint}(0), Ref{Cint}(0) | ||
| glfwGetFramebufferSize(window, w_ref, h_ref) | ||
| display_w, display_h = w_ref[], h_ref[] | ||
| glViewport(0, 0, display_w, display_h) | ||
| glClearColor(0.45, 0.55, 0.60, 1.00) | ||
| glClear(GL_COLOR_BUFFER_BIT) | ||
| ImGuiOpenGLBackend.render(gl_ctx) | ||
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| if unsafe_load(CImGui.GetIO().ConfigFlags) & ImGuiConfigFlags_ViewportsEnable == ImGuiConfigFlags_ViewportsEnable | ||
| backup_current_context = glfwGetCurrentContext() | ||
| LibCImGui.igUpdatePlatformWindows() | ||
| GC.@preserve gl_ctx LibCImGui.igRenderPlatformWindowsDefault(C_NULL, pointer_from_objref(gl_ctx)) | ||
| glfwMakeContextCurrent(backup_current_context) | ||
| end | ||
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| glfwSwapBuffers(window) | ||
| end | ||
| catch e | ||
| @error "Error in renderloop!" exception=e | ||
| Base.show_backtrace(stderr, catch_backtrace()) | ||
| finally | ||
| ImGuiOpenGLBackend.shutdown(gl_ctx) | ||
| ImGuiGLFWBackend.shutdown(window_ctx) | ||
| CImGui.DestroyContext(imgui_ctx) | ||
| glfwDestroyWindow(window) | ||
| end |
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